MATHEMATICS. NATURAL SCIENCES. Universal Decimal Classification

MATHEMATICS. NATURAL SCIENCES

Scope note

Class here generalities about the pure sciences and the exact or mathematical sciences (including astronomy, mechanics and mathematical physics)

Example

5(091) History of natural sciences

Broader Terms

BT↑ MAIN TABLES

More specific terms

NT2 502/504 ↓ Environmental science. Conservation of natural resources. Threats to the environment and protection against them ►▼
- NT3 502 ↓ The environment and its protection ►▼
  - NT4 502.3/.7 ↓ Parts of the environment
- NT3 504 ↓ Threats to the environment
NT2 51 ↓ Mathematics ►▼
- NT3 510 ↓ Fundamental and general considerations of mathematics ►▼
  - NT4 510.2 ↓ General problems of mathematical logic. Foundations of mathematics
  - NT4 510.3 ↓ Set theory
  - NT4 510.6 ↓ Mathematical logic
- NT3 511 ↓ Number theory
- NT3 512 ↓ Algebra
- NT3 514 ↓ Geometry ►▼
  - NT4 514.7 ↓ Differential geometry. Algebraic and analytic methods in geometry
- NT3 515.1 ↓ Topology
- NT3 517 ↓ Analysis ►▼
  - NT4 517.9 ↓ Differential equations. Integral equations. Other functional equations. Finite differences. Calculus of variations. Functional analysis
- NT3 519.1 ↓ Combinatorial analysis. Graph theory
- NT3 519.2 ↓ Probability. Mathematical statistics
- NT3 519.6 ↓ Computational mathematics. Numerical analysis
- NT3 519.7 ↓ Mathematical cybernetics
- NT3 519.8 ↓ Operational research (OR): mathematical theories and methods ►▼
  - NT4 519.83 ↓ Game theory
  - NT4 519.85 ↓ Mathematical programming
NT2 52 ↓ Astronomy. Astrophysics. Space research. Geodesy ►▼
- NT3 520 ↓ Astronomical instruments and techniques
- NT3 521 ↓ Theoretical astronomy. Celestial mechanics ►▼
  - NT4 521.9 ↓ Astrometry. Spherical astronomy
- NT3 523 ↓ The Solar System ►▼
  - NT4 523.3 ↓ Earth-Moon system
  - NT4 523.4 ↓ Planets and their satellites. Planetology
  - NT4 523.6 ↓ Interplanetary medium. Comets. Meteors. Meteorites
  - NT4 523.9 ↓ The Sun. Solar physics
- NT3 524 ↓ Stars. Stellar systems. The Universe ►▼
  - NT4 524.1 ↓ Cosmic rays. Primary cosmic rays
  - NT4 524.3 ↓ Stars
  - NT4 524.4 ↓ Star clusters. Associations of stars
  - NT4 524.5 ↓ Interstellar medium. Galactic nebulae
  - NT4 524.6 ↓ The Galaxy (Milky Way)
  - NT4 524.7 ↓ Extragalactic systems
  - NT4 524.8 ↓ The Universe. Metagalaxy. Cosmology
- NT3 528 ↓ Geodesy. Surveying. Photogrammetry. Remote sensing. Cartography ►▼
  - NT4 528.1 ↓ Theory of errors and adjustment in geodesy and photogrammetry
  - NT4 528.2 ↓ Figure of the Earth. Earth measurement. Mathematical geodesy. Physical geodesy. Astronomical geodesy
  - NT4 528.3 ↓ Geodetic surveying
  - NT4 528.4 ↓ Field surveying. Land surveying. Cadastral survey. Topography. Engineering survey. Special fields of surveying
  - NT4 528.5 ↓ Geodetic instruments and equipment
  - NT4 528.7 ↓ Photogrammetry: aerial, terrestrial
  - NT4 528.8 ↓ Remote sensing
  - NT4 528.9 ↓ Cartography. Mapping (textual documents)
NT2 53 ↓ Physics ►▼
- NT3 53.01/.09 ↓ Special auxiliary subdivision for physics ►▼
  - NT4 53.01 ↓ Theory and nature of phenomena
  - NT4 53.02 ↓ General laws of phenomena
  - NT4 53.03 ↓ Production and causes of phenomena
  - NT4 53.04 ↓ Effects of phenomena
  - NT4 53.05 ↓ Observation and recording of phenomena. Visual indication of phenomena
  - NT4 53.06 ↓ Application, utilization of phenomena
  - NT4 53.07 ↓ Apparatus for production and study of phenomena
  - NT4 53.08 ↓ General principles and theory of measurement and the design of measuring apparatus. Measurement methods
  - NT4 53.09 ↓ Dependence of phenomena on certain fundamental physical effects
- NT3 531/534 ↓ Mechanics ►▼
  - NT4 531 ↓ General mechanics. Mechanics of solid and rigid bodies ►▼
    - NT5 531-1/-9 ↓ Special auxiliary subdivision for mechanics ►
    - NT5 531.1 ↓ Kinematics. Mathematical-mechanical geometry of motion
    - NT5 531.2 ↓ Statics. Forces. Equilibrium. Attraction
    - NT5 531.3 ↓ Dynamics. Kinetics
    - NT5 531.4 ↓ Work. Weight. Mass. Friction. Passive resistance
    - NT5 531.5 ↓ Gravity. Gravitation. Pendulums. Ballistics
    - NT5 531.6 ↓ Mechanical energy. Conservation of mechanical energy
    - NT5 531.7 ↓ Measurement of geometric and mechanical quantities: instruments, methods and units
    - NT5 531.8 ↓ Theory of machines. Technical mechanics in general
  - NT4 532 ↓ Fluid mechanics in general. Mechanics of liquids (hydromechanics) ►▼
    - NT5 532.1 ↓ Hydrostatics in general
    - NT5 532.2 ↓ Equilibrium of liquids
    - NT5 532.3 ↓ Immersed bodies (submerged bodies). Floating bodies
    - NT5 532.5 ↓ Liquid motion. Hydrodynamics
    - NT5 532.6 ↓ Surface phenomena. Surface tension. Capillarity
    - NT5 532.7 ↓ Kinetic theory of liquids. Osmosis. Solution and solutions
  - NT4 533 ↓ Mechanics of gases. Aeromechanics. Plasma physics ►▼
    - NT5 533.1 ↓ Properties of gases
    - NT5 533.2 ↓ Elasticity. Compressibility. Liquefaction. Gas mixing. Gaseous mixtures
    - NT5 533.5 ↓ Rarefied gases. Vacuum physics
    - NT5 533.6 ↓ Aerodynamics
    - NT5 533.7 ↓ Kinetic theory of gases. Continuity of state
    - NT5 533.9 ↓ Plasma physics
  - NT4 534 ↓ Vibrations. Waves. Acoustics ►▼
    - NT5 534.1 ↓ Vibration of bodies. Excitation of vibrations. Vibratory formations with distributed mass and elasticity
    - NT5 534.2 ↓ Propagation of vibrations. Processes in the acoustic field
    - NT5 534.3 ↓ Musical sounds and perception
    - NT5 534.4 ↓ Analysis and synthesis of sounds
    - NT5 534.5 ↓ Composition of vibrations
    - NT5 534.6 ↓ Acoustic measurements
    - NT5 534.7 ↓ Physiological acoustics. Medical acoustics
    - NT5 534.8 ↓ Applications of acoustics (theory)
- NT3 535 ↓ Optics ►▼
  - NT4 535-1/-9 ↓ Special auxiliary subdivision for optics ►▼
    - NT5 535-1/-3 ↓ Radiation according to wavelength. Hertzian waves. Light colours ►
    - NT5 535-4 ↓ Polarized light
    - NT5 535-5 ↓ Natural light
    - NT5 535-6 ↓ Partially polarized light
    - NT5 535-7 ↓ Totally reflected light
  - NT4 535.1 ↓ Theory of light
  - NT4 535.2 ↓ Propagation and energetics of radiation. Photometry
  - NT4 535.3 ↓ Propagation. Reflection. Refraction. Absorption. Emission
  - NT4 535.4 ↓ Interference. Diffraction. Scattering by diffraction
  - NT4 535.5 ↓ Polarization. Double refraction. Dispersion in anisotropic bodies
  - NT4 535.6 ↓ Colours and their properties. Colour theory
  - NT4 535.8 ↓ Applications of optics in general
- NT3 536 ↓ Heat. Thermodynamics. Statistical physics ►▼
  - NT4 536.1 ↓ General theory of heat
  - NT4 536.2 ↓ Heat conduction. Heat transfer
  - NT4 536.3 ↓ Effect of bodies on heat radiation
  - NT4 536.4 ↓ Effect of heat input and temperature on volume and structure of bodies
  - NT4 536.5 ↓ Temperature. Temperature scales. Temperature measurement. Thermometers. Temperature control
  - NT4 536.6 ↓ Measurement of heat quantity. Calorimetry
  - NT4 536.7 ↓ Thermodynamics. Energetics
- NT3 537 ↓ Electricity. Magnetism. Electromagnetism ►▼
  - NT4 537.2 ↓ Static electricity. Electrostatics
  - NT4 537.3 ↓ Current electricity. Electric current. Electrokinetics
  - NT4 537.5 ↓ Electron and ion phenomena
  - NT4 537.6/.8 ↓ Magnetism. Electromagnetism ►▼
    - NT5 537.6 ↓ Magnetism
    - NT5 537.8 ↓ Electromagnetism. Electromagnetic field. Electrodynamics
- NT3 538.9 ↓ Condensed matter physics. Solid state physics
- NT3 539 ↓ Physical nature of matter ►▼
  - NT4 539.1 ↓ Nuclear physics. Atomic physics. Molecular physics
  - NT4 539.2 ↓ Properties and structure of molecular systems
  - NT4 539.3 ↓ Elasticity. Deformation. Mechanics of elastic solids
  - NT4 539.4 ↓ Strength. Resistance to stress
  - NT4 539.5 ↓ Properties of materials affecting deformability
  - NT4 539.6 ↓ Intermolecular forces
  - NT4 539.8 ↓ Other physico-mechanical effects
NT2 54 ↓ Chemistry. Crystallography. Mineralogy ►▼
- NT3 54-1/-4 ↓ Special auxiliary subdivision for state of substance, chemicals ►▼
  - NT4 54-1 ↓ State of substance
  - NT4 54-3 ↓ Particular kinds of compound
  - NT4 54-4 ↓ Chemicals. Reagents
- NT3 54.01/.08 ↓ Special auxiliary subdivision for composition, production, preparation and analysis ►▼
  - NT4 54.01 ↓ Chemical substances and systems. Origin. Occurrence. Phases
  - NT4 54.02 ↓ Composition. Structure. Isotopes
  - NT4 54.05 ↓ Production. Preparation. Isolation. Purification etc.
  - NT4 54.06 ↓ Analysis, investigation and handling in general
  - NT4 54.07 ↓ Apparatus and equipment for preparation, investigation and analysis
  - NT4 54.08 ↓ Measurement principles, methods, techniques. Instrumentation
- NT3 542 ↓ Practical laboratory chemistry. Preparative and experimental chemistry ►▼
  - NT4 542.1 ↓ Chemical laboratories
  - NT4 542.2 ↓ Laboratory apparatus and instrumentation in general. Laboratory methods in general
  - NT4 542.3 ↓ Measurement of weight, mass. Measurement of volume
  - NT4 542.4 ↓ Heat and cold application
  - NT4 542.5 ↓ Use of flames. Blowlamps
  - NT4 542.6 ↓ Working with liquids
  - NT4 542.7 ↓ Working with gases
  - NT4 542.8 ↓ Physical, physicochemical and electrical operations
  - NT4 542.9 ↓ Chemical reactions. Special chemical processes
- NT3 543 ↓ Analytical chemistry ►▼
  - NT4 543.2 ↓ Chemical methods of analysis
  - NT4 543.3 ↓ Water sampling and analysis
  - NT4 543.4 ↓ Spectral analysis methods. Optical analysis methods
  - NT4 543.5 ↓ Physicochemical methods of analysis (other than optical methods)
  - NT4 543.6 ↓ Analysis of different substances. Analytical control in production conditions
  - NT4 543.9 ↓ Analysis by biological and biochemical reactions. Biological methods used for analytical purposes
- NT3 544 ↓ Physical chemistry ►▼
  - NT4 544.01/.07 ↓ Special auxiliary subdivision for physical chemistry ►▼
    - NT5 544.01 ↓ Chemical substances and systems. Origin. Natural state. Phases
    - NT5 544.02 ↓ Chemical composition. Structure. Isotopes etc.
    - NT5 544.03 ↓ Physical properties and phenomena. Constants. Effects acting on state and properties of matter
    - NT5 544.07 ↓ Instruments and equipment
  - NT4 544.1 ↓ Chemical structure of matter
  - NT4 544.2 ↓ Physical chemistry of solids, liquids and gases
  - NT4 544.3 ↓ Chemical thermodynamics
  - NT4 544.4 ↓ Chemical kinetics. Catalysis
  - NT4 544.5 ↓ Chemistry of high energy processes
  - NT4 544.6 ↓ Electrochemistry
  - NT4 544.7 ↓ Chemistry of surface phenomena and colloids
- NT3 546 ↓ Inorganic chemistry ►▼
  - NT4 546.1 ↓ Nonmetals and metalloids in general
  - NT4 546.3 ↓ Metals in general
- NT3 547 ↓ Organic chemistry ►▼
  - NT4 547.1 ↓ Classification of organic compounds. Element-organic compounds
- NT3 548/549 ↓ Mineralogical sciences. Crystallography. Mineralogy ►▼
  - NT4 548 ↓ Crystallography ►▼
    - NT5 548.1 ↓ Mathematical crystallography. Continuum theory of crystals
    - NT5 548.2 ↓ Crystal growths. Crystalline aggregates
    - NT5 548.3 ↓ Crystal chemistry
    - NT5 548.4 ↓ Irregularities in crystals
    - NT5 548.5 ↓ Formation, growth and solution of crystals
    - NT5 548.7 ↓ Fine structure of crystals. Discontinuum theory of crystals
  - NT4 549 ↓ Mineralogy. Special study of minerals ►▼
    - NT5 549.2/.8 ↓ Systematic mineralogy ►
NT2 55 ↓ Earth Sciences. Geological sciences ►▼
- NT3 550 ↓ Ancillary sciences of geology etc. ►▼
  - NT4 550.1 ↓ Physiography
  - NT4 550.2 ↓ Geoastronomy. Cosmogony
  - NT4 550.3 ↓ Geophysics
  - NT4 550.4 ↓ Geochemistry
  - NT4 550.7 ↓ Geobiology. Geological actions of organisms
  - NT4 550.8 ↓ Applied geology and geophysics. Geological prospecting and exploration. Interpretation of results
  - NT4 550.93 ↓ Geochronology. Geological dating. Determination of absolute geological age
- NT3 551 ↓ General geology. Meteorology. Climatology. Historical geology. Stratigraphy. Palaeogeography ►▼
  - NT4 551.1/.4 ↓ General geology ►▼
    - NT5 551.1 ↓ General structure of the Earth
    - NT5 551.2 ↓ Internal geodynamics (endogenous processes) ►
    - NT5 551.3 ↓ External geodynamics (exogenous processes) ►
    - NT5 551.4 ↓ Geomorphology. Study of the Earth's physical forms ►
  - NT4 551.5 ↓ Meteorology ►▼
    - NT5 551.58 ↓ Climatology
  - NT4 551.7 ↓ Historical geology. Stratigraphy
  - NT4 551.8 ↓ Palaeogeography
- NT3 552 ↓ Petrology. Petrography ►▼
  - NT4 552.1 ↓ Rock characteristics and properties generally. Physical and physicochemical petrology
  - NT4 552.3/.6 ↓ Igneous, sedimentary and metamorphic petrology ►▼
    - NT5 552.3 ↓ Magmatic rocks. Igneous rocks
    - NT5 552.4 ↓ Metamorphic rocks
    - NT5 552.5 ↓ Sedimentary rocks
    - NT5 552.6 ↓ Meteorites
- NT3 553 ↓ Economic geology. Mineral deposits ►▼
  - NT4 553.2 ↓ Ore formation. Mineral formation
  - NT4 553.3/.9 ↓ Ore and other mineral deposits. Natural resources ►▼
    - NT5 553.3 ↓ Ore deposits (metalliferous mineral deposits) in general. Iron and manganese ores
    - NT5 553.4 ↓ Ore deposits other than iron and manganese
    - NT5 553.5 ↓ Natural stone deposits
    - NT5 553.6 ↓ Deposits of various inorganic economic minerals and earths (mainly nonmetalliferous)
    - NT5 553.7 ↓ Mineral springs
    - NT5 553.8 ↓ Deposits of precious and semiprecious stones. Gemstone deposits
    - NT5 553.9 ↓ Deposits of carbonaceous rocks. Hydrocarbon deposits
- NT3 556 ↓ Hydrosphere. Water in general. Hydrology ►▼
  - NT4 556.3 ↓ Groundwater hydrology. Geohydrology. Hydrogeology
  - NT4 556.5 ↓ Surface-water hydrology. Land hydrology
NT2 56 ↓ Palaeontology ►▼
- NT3 561 ↓ Systematic palaeobotany ►▼
  - NT4 561.4 ↓ Seed plants in general. Spermatophyta. Phanerogams. Siphonogamous embryophyta
  - NT4 561.7 ↓ Rosidae
  - NT4 561.9 ↓ Asteridae
- NT3 562/569 ↓ Systematic palaeozoology ►▼
  - NT4 562 ↓ Invertebrata in general
  - NT4 564 ↓ Mollusca. Bryozoa. Brachiopoda
  - NT4 565 ↓ Articulata ►▼
    - NT5 565.7 ↓ Insecta (Hexapoda). Insects
  - NT4 566/569 ↓ Chordata ►▼
    - NT5 567/569 ↓ Vertebrata. Fossil vertebrates ►
NT2 57 ↓ Biological sciences in general ►▼
- NT3 57.01/.08 ↓ Special auxiliary subdivision for theoretical aspects, characteristics, factors etc. in biology ►▼
  - NT4 57.01 ↓ General laws. Theoretical aspects. Characteristics. Properties
  - NT4 57.02 ↓ Biological and ethological processes
  - NT4 57.03 ↓ Pattern of property variations
  - NT4 57.04 ↓ Factors. Influences
  - NT4 57.06 ↓ Nomenclature and classification of organisms. Taxonomy
  - NT4 57.07 ↓ Analytical palaeontology
  - NT4 57.08 ↓ Biological techniques, experimental methods and equipment in general
- NT3 572 ↓ Physical anthropology ►▼
  - NT4 572.1/.4 ↓ Anthropogeny. Human development in general. Origin of the human species
  - NT4 572.9 ↓ Special anthropogeography. Individual human ancestry groups
- NT3 573 ↓ General and theoretical biology
- NT3 574 ↓ General ecology and biodiversity
- NT3 575 ↓ General genetics. General cytogenetics
- NT3 576 ↓ Cellular and subcellular biology. Cytology
- NT3 577 ↓ Material bases of life. Biochemistry. Molecular biology. Biophysics
- NT3 578 ↓ Virology
- NT3 579 ↓ Microbiology ►▼
  - NT4 579.2 ↓ General microbiology
  - NT4 579.6 ↓ Applied microbiology
  - NT4 579.8 ↓ Classification and systematics of microorganisms
NT2 58 ↓ Botany ►▼
- NT3 581 ↓ General botany ►▼
  - NT4 581.1 ↓ Plant physiology
  - NT4 581.2 ↓ Plant diseases. Plant pathology. Phytopathology
  - NT4 581.3 ↓ Embryology of plants
  - NT4 581.4 ↓ Plant morphology. Plant anatomy
  - NT4 581.5 ↓ Habits of plants. Plant behaviour. Plant ecology. Plant ethology. The plant and its environment. Bionomics of plants
  - NT4 581.6 ↓ Applied botany. Use of plants. Technobotany. Economic botany
  - NT4 581.8 ↓ Plant histology
  - NT4 581.9 ↓ Geographic botany. Plant geography (phytogeography). Floras. Geographic distribution of plants
- NT3 582 ↓ Systematic botany ►▼
  - NT4 582.091/.099 ↓ Special auxiliary subdivisions for classification of plants according to size and form ►▼
    - NT5 582.091 ↓ Trees (large woody plants with trunk)
    - NT5 582.093 ↓ Shrubs (smaller woody plants without single trunk)
    - NT5 582.095 ↓ Undergrowth. Undershrubs (e.g. brambles - Rosoideae)
    - NT5 582.097 ↓ Woody climbers (e.g. ivy - Araliaceae)
    - NT5 582.099 ↓ Herbaceous or non-woody plants (often called 'plants' or 'flowers')
  - NT4 582.23 ↓ Bacteria
  - NT4 582.24 ↓ Protista (Protoctista). Chromista. Protozoa
  - NT4 582.261/.279 ↓ Algae. Phycology
  - NT4 582.28 ↓ Fungi (Eumycota, Eumycetes). True fungi. Moulds. Mycology
  - NT4 582.29 ↓ Lichens
  - NT4 582.32/.998 ↓ Plantae ►▼
    - NT5 582.32 ↓ Bryophyta (Musci). Bryology
    - NT5 582.361/.99 ↓ Tracheophyta. Vascular plants ►
NT2 59 ↓ Zoology ►▼
- NT3 591 ↓ General zoology ►▼
  - NT4 591.1 ↓ Animal physiology
  - NT4 591.2 ↓ Diseases of (undomesticated) animals. Animal pathology
  - NT4 591.3 ↓ Animal embryology. Animal ontogeny. Development of the individual organism
  - NT4 591.4 ↓ Study of animal organs. Animal organology. Animal anatomy. Zootomy
  - NT4 591.5 ↓ Animal habits. Animal behaviour. Ecology. Ethology. Animal and environment. Bionomy
  - NT4 591.6 ↓ Economic zoology. Applied zoology
  - NT4 591.8 ↓ Animal histology
  - NT4 591.9 ↓ Geographic zoology. Zoogeography. Fauna. Geographic distribution of animals
- NT3 592/599 ↓ Systematic zoology ►▼
  - NT4 592 ↓ Invertebrata
  - NT4 594 ↓ Mollusca. Bryozoa. Brachiopoda
  - NT4 595 ↓ Articulata ►▼
    - NT5 595.7 ↓ Insecta (Hexapoda). Insects. Entomology
  - NT4 596/599 ↓ Chordata ►▼
    - NT5 596.2 ↓ Urochordata (Tunicata)
    - NT5 597/599 ↓ Vertebrata ►

ExactMatch: http://udcdata.info/025403

Date of creation

06-Mar-2019

Accepted term

06-Mar-2019

Descendant terms

369

ARK

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